Controller for motor-chairs.



C. B. CHRYSLER. CONTROLLER FOR MOTOR CHAIRS. APPLICATION FILED DB0. s, 1912'.

1,098,939. Patented June 2,1914.

Ina.,

UNITED STATES rirrnur orrion CHARLES B. CHRYSLER,

or cnIcAGo, rumors.

'CONTRLLER FDR MOTOR-CHAIRS.

Specification of Letters Patent.

Patented June 2,191 4.

Application led December 9, 1912. Serial No. 735,748.

wheeled-chair type which isv driven' by `an electric motor operated by a storage battery .carried by the vehicle.

' The invention will n reference to the accompanylng drawlngs A further Objectis to provide. a device of this character, which is simple 1n construction and eiiicient in its operation,

'Other objects will appear hereinafter.

The invention consists in thecombinations and arrangements of parts hereinafter described and claimed.

be best understood by forming a part of this specification, and in which, l

Figure 1 is a vertical section of a v ehicle having a controller embodylng my invention, showing. the electrical circuit in d1agram, Fig. 2 is an enlarged fragmental section illustrating the simultaneous means for' operating the brakeand electric switch', Eig. 3 is a view of the same looking in the direction of the arrow in Fig. 2, and' Fig. 4 is an enlarged fragmental section showing the brake and its mounting.A

'lhe preferred form of construction, as

illustrated in the accompanying drawings,`

comprises a frame comprising'tubes 7 joined together in a conventional manner such'as brazing. The front wheel 8 is mounted on a suitable fork 9 and pivoted on the front portion of the frame in a conventional manner, a steering lever 10 is operatively connected with the fork 9 to eifect steering of the vehicle in the conventional-manner.

The rear portion 'of the frame issupported on a cross beam 1l and ellipticalsprings 12, one of which is shown. A. rearl` axle 14 is journaled under said springs and rear wheels, one of which is shown; mounted on said axle, one wheel being rigidly secured to the axle and the other mounted to revolve independently oftheY axle. Since mounting wheels on vanaXle in this manner 1s well known no detail view thereof is shown. .l

A conventional seat 18 is carried by the frame on its rear portion und a housing 1) 1s carried by said frame on its front portion. Between the seat 11 Vand housing 19 is a foot platform 2O and extending between the under side of the scat 1S and foot platform 20is a housing 21 which is provided with end portions 22 and comprises a motor hous ing for the motor 23.

The motor 23 is secured in the bot-tom portion of the motor housing and conneeted byy means of a sprocket wheel 24, sprocket chain 25 and sprocket wheel 26 to a jackshaft 27 which is journaled in bearings 28 and the latter secured to the beam 11. A sprocket wheel 29 is connected, by means of a sprocket chain 30 with a sprocket wheel 31 on the axle 14, to operatively connectsaid motor 23 with the rear wheel 16 to eiect traction of the vehicle. Secured near one end of the j ack-shaft 27 is a brake-drum 32 having a conventional brake-band 33 connected by means of two links 34 to one of the bearlngs 28. Said brakeband is operated'bymeans of a cord 35 which passes over a pulley 36 and connected with a manually operative lever 41 which isjournalcd in the lower portion of the housing 19.

The housing 19 is provided` for the electric battery 38 which furnishes energy to operate'the motor `23. The battery 38 is connected with the motor 23 by means oi a conventional wire circuit 39 and in said circuit is a switch 40. The Vstationaryportion of the switch 40 is secured to the inner side of the housing 19 and the moving member of the switch 40 is carried by a manually operative lever 37, which is journaled in the lower portionof the housing 19, as cloearly illustrated. A pulley 42 is journalcdwon the inner side of the housing 19 and a cord 43 passedpver said`pulley with its two ends connected with the levers 37 and 41 in a manner to cause upward movement of one of the other.- In this manner it will be seen that upon moving the lever 37 downwardly to close the electric switch 40 the lever 41 will be moved upwardly thereby freeing the brakeband 33 on the brakedrum 32. Upon moving the lever 41 downwardly, the cord 43 causes upward moveof said levers upon the downward movcmen`t1"`^v ment of the lever 37 and opening of switch 40, therebyv opening the electric circuit 39 connecting the battery 38 and motor 23.

In operation the operator moves the lever 37 downwardly to close the circuit 39 there- Y by permitting an electric current to pass from the battery 3S to the motor 23, Whereupon the motor through the connecting gearing causes rotation of the rear Wheel 16 which 'is secured to shaft 14 to propel the vehicle. 1When the operator desires to stop the vehicle he presses the lever 41 down- A therefore, do not Wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come Within the scope of the appended claims.

Having described .my invention what I claim as new and desire to secure by Letters Patent is:

l. The combination of a mounting; a foot lever pivted to said, mounting; a brake ,mechanism operable by said footv lever; a

second foot lever pivoted tosaid mounting; an electrical switch comprising a stationary "member on said mounting and a movable member carried by said second mentioned lever and adapted to engage the'stationary member to close the switch; a pulley on said mounting; and a cord over said pulley having its ends secured to said foot levers and adapted to cause operation of one foot lever of the other, substantially as upon operation described. i

2. The combination 'of av foot lever; a brake mechanism operable by said foot lever; a second foot lever; an electricswitch operable by said second foot lever; a pulley;

and a cord over said pulley, havin its ends secured to said foot levers and a apted to cause operation of one foot lever upon operation of the other, substantially as described.

In testimony Vwhereof I have signed my name to this specification in the presence of two subscribing Witnesses. e

` CHARLES B. CHRYSLER. VVtnessesz' JOSHUA R. H. Porrs, HELEN F. LiLLIs.

Copiesof this patent may be obtained for ve cents each, by addressing the Commissioner o Patents,

Washington, ZD. C. 

